Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 46 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.446 × 999 =
2. 2.23555 × 999 =
3. 3.599 × 99 =
4. 4.1708 × 99 =
5. 5.2 × 9 =
6. 6.26 × 9 =
7. 7.278 × 99 =
8. 8.98 × 9 =
9. 9.204 × 999 =
10. 10.8 × 9 =
11. 11.21 × 99 =
12. 12.297 × 999 =
13. 13.62 × 99 =
14. 14.8 × 9 =
15. 15.32 × 99 =
16. 16.179 × 9 =
17. 17.6 × 9 =
18. 18.889 × 999 =
19. 19.4 × 99 =
20. 20.8 × 9 =
21. 21.2257 × 99 =
22. 22.5 × 9 =
23. 23.41 × 99 =
24. 24.62 × 99 =
25. 25.15 × 99 =
26. 26.6 × 9 =
27. 27.33 × 99 =
28. 28.431 × 999 =
29. 29.26 × 99 =
30. 30.851 × 999 =
31. 31.5 × 9 =
32. 32.8 × 9 =
33. 33.775 × 999 =
34. 34.91 × 99 =
35. 35.18 × 999 =
36. 36.36 × 999 =
37. 37.8 × 99 =
38. 38.146 × 9 =
39. 39.25889 × 999 =
40. 40.2914 × 99 =

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